Ball cock



Nov. 29, 1932. A. N. PASMAN 1,889,566

BALL COCK Filed May l2. 1950 0a 23 Z5 f' 2,3 38 gli?, A.

Patented Nov. 29, 1932 UNITED STATES PATENT oFFicE N. PSMAN, 0F WATERBURY, CONNECTICUT, ASSIGNOR TO SCVILL MANUFAC- TURING COMPANY, 0F WATERBURY, CONNECTICUT BALL COCK Application led May 12, 1930. Serial No. 451,698.

to a tank or other receptacle for flushing toilets orthe like, the present structure being 'an improvement over the ball cock shown in my prior Patent No. 1,604,7 82 granted October 26, 1926. y In this type of structure it is necessary p y of the ball cock; and

that the valve controls the admission'of water into a tank or the like and a float is provided in the tank to effec-t the closing of the valve when the water has reached a predetermined level. As the water entering the tank is under pressure, the valve must be closed against this pressure, and in order that the float may always act positively to eii'ect complete closing of the valve, it is desirable that the total resistance offered by 'this pressure be reduced as much as possible. This pressure is, of course, due to the pressure of the water in the mains or system which supplies s the tank and naturally varies to a considerable extent depending upon the particular system in connection with ,which the valveV is employed and also depending upon the amount of water beingused at the time of operation of the valve which obviously causes 'a variation in the amount of pressure in pipes.

One object of this invention is to provide a ball cock in which the resistance opposing the closing of the valve shall be reduced to a minimum.

Another object of the invention is to pro vide a ball cock wherein the valve will al-V to the tank and to the bowl in such ay manner that the usual objectionable noise will be avoided.

To these and other ends, the invention consists in the novel features and combinations of parts to be hereinafter described and claimed.

In the accompanying drawing:`

Fig. 1 isa central longitudinal sectional view of the ball cock;

Fig. 2 is a similar view of the upper portion of the device, but showing the valve p in open position; y

Fig. 3 is a top plan view of the upper end Fig. 4 is an enlarged sectional view of certain of the parts thereof. Y

VTo illustrate a preferred form of my invention, I have shown a ball cock such as is customarily employed for lushing a toilet and which is normally installed within the usual flushing tank, the bottom of which is shown in a fragmentary way at 10. Entering an opening11 in the bottom of the tank, is the usual supply pipe 12 which makes a water-tight connection with the tank by means of the-gasket 13.

The iitting or housing for the parts of the valve comprises anv inlet pipe 14 in this instance having a threaded connection with the supply pipe 12 this inlet` pipe having an external spirally disposed groove 15. To the Vupper end of this pipe is secured a valve casing 16 having a yskirt portion 17 which surrounds the upper end of the pipe 14 and is spaced therefrom. A sleeve 18 is secured to the lower portion of the skirt 17 which sleeve surrounds the spirally grooved portion 15 of the inlet pipe 14.

Within the valve casing 16 there is providedA an annular wall portion 19, which provides a` socket to receive anV apertured valve Yseat member 20, this member being clamped against a flange on the member 19 by the upper end ofV the inlet pipe 14 which has a threaded connection with the annular wall 19. The valve casing 16 is also provided with a boss or enlargement 21 which provides a passage 22 between the chamber at the outlet end vot the seat member 20 andthe sleeve 18, so.

aroundthe spiral grooves of thepipe 14 into the tank. At the upper end of the valve casing 16 is provided a lever 23 pivoted in the casing at 24, this lever having an arm 25 secured thereto, upon the end of which arm is mounted the usual ball float (not shown) which controls the valve according to the level of water in the tank as will bel explained hereinafter. This lever is provided with a toe portion 26 which operates the valve. As the parts heretofore described are shown in my prior patent referred to above, no further description thereof is deemed necessary.

Within the upper end of the valve housing 16 is mounted a cup-shaped member 28 having an opening 29 in the bottom portion thereof through which passes a valve stem 30, having an enlarged portion 31 at its lower end to which is secured a valve 32 by means of a screw threaded collar 33, this valve being adapted to seat upon the valve seat member 2O and control the flow of water through the aperture thereof.

Loosely surrounding the valve stem 3() so as to be movable thereon is a flanged collar 34 having upon its upper surface a member 35 of suitable packing material such as felt or the like designed to make relatively tight contact laterally with the wall of the casing 16 and also with the valve stem 30 so as to substantially prevent the passage of water upwardly lthrough the opening 29 in the bottom of the cup or between the wall of the cup and the wall of the housing 16. As shown in Figs. 1 and 2, the peripheral edge of the member 34 is seated against an internal shoulder 36 in the upper portion of the housing 16 so that this member and the packing 35 is held between this shoulder and the bottom of the cup 28. It will be understood, therefore, that the valve stem 30 and valve thereon enjoys a reciprocating sliding movement through the flange 34 and packing 35.

Upon the upper end of the valve stem 30 is secured a head 37 having a stirrup 36 thereon within which is disposed the end 26 of the lever 23, the end 26 being of such form that it will contact with the upper portion of the stirrup to move the valve upwardly when the arm 25 of the lever is moved downwardly and will contact with the head 37 to move the valve downwardly when the arm 25 is moved upwardly under the influence of the float. as controlled by the level of the water in the tank.

The upper end of the cup member 26 is cut away at 39 and 40 to provide clearance for the lever 23 and also for the pivot 2li; which in this instance is a pin passed through apertures in lugs Ll1 and 4t2 formed on the wall of the easing 16 at the upper end thereof. rhe end of this pin is curved as shown at 43, and when in position is adapted to snap over the lip 45 to hold the lever 23 in place. r)The cup member will be held in place by engagement of the pin 24 with the lshoulder 40a.

The valve casing 16 is provided with an internal shoulder 17 adapted to guide the valve member in its movements and between this shoulder and the flanged collar 34e is a chamber 4S from which leads a refill pipe t). ie construction and operation of this reiill pipe and associated parts is the same as substantially shown in my prior Patent No. 1,60%,762 and hence no further description thereof is deemed necessary. i i

The operation of my improved ball cock is as follows: ln Fig. 1 the parts are shown in the position which they assume when the flush tank is filled to the desired level and the valve 32 seated upon the seat member 2() closing the aperture therein so that no water flows through the inlet pipe 14. rl"his is the normal position of the parts when the toilet or other fixture is not in use. TNh en the toilet is flushed the water will be drawn from the flush tank as is well understood causing the arm 25 to move downwardly raising the lever 26 which contacts with the stirrup 38 and raising the valve 32 from its seat. the valve,

stem being moved through the packing 35 and through the opening in the cup member 2S. lt will be understood that the greater portion of the water entering through the aperture in the seat member 2() passes through the passage 22 and downwardlvv through the sleeve member 18 around 'the spiral grooves 15 into the tank. Some ofthe water, however, passes upwardly into the chamber Lil?) and thence through the refill pipe L19 to the bowl. Then the tank has been filled to the desired level. the fioaton the end of the arm 25 will raise this arm to a sutil.- cient extent to again seat the valve ,so as to close the aperture in tie seat member 20.

against the passage of additional water.

It will be apparent that this valve member 32 must close against the pressure of the water in the inlet pipe 14. However. as the supply water also passes into the chamber..

46, there will be pressure above the valve member 31 so that the eillective resistance of t-he water pressure to the closing of the valve will only be that over an area equal to the cross-section al area of the valve stem 30. however, the flange collar 3 and packing 35 were secured to the valve stem to move therewith, 'the water pressure in the chamber would resist downward movement of this member and therefore would resist the close,

ing of the valve. However. as the stem 30 is arranged to slide through the members 34rand 35, and as these members are held in a stationary position, the pressure of the water in the chamber 43 aids rather than opposes the closing of the valve with the e'liect beforel mentioned that the valve resisted only by the water pressure on an area equal to the cross-sectional area of the stem 30. This stem may be made relatively small so that the resistance of the water pressure to the trated.

diiiculty has been experienced inthe past in securing positive closing of thevalve. Due to the fact that the spirally grooved externa-l surface of the inlet pipe 14 reta-rds the course i of the water to some extent, a back pressure is produced in the chamber 48 which renders my improvement particularly advantageous in the form ofiixture which I have illus- It will be obvious in this connection that if the packing member were secured to and moved with the valve and valve stem, this back pressure would offer considerable resist-ance to the closing ofthe valve. Y

IVhile I have shown and described a preferred embodiment of my invention, it will be understood that it is not to be limited to all of the details shown, but is capable of modification and variation within the spirit of the invention and within the scope of the appended claims.

What I claim is:

l. A ball cock comprising acasing having a chamber therein, an inlet pipe communieating with said chamber, a valve within said chamber controlling the communication between it andthe inlet pipe, a stem secured v to said valve, a packing member surrounding the stem through which the stem moves, said packing member being secured in the casing and contacting with the wall thereof, means ior holding said packing member in place comprising a cup-shaped member secured in the mouth of the casing and having its lower portion bearing against the upper face of the packing, a lever to operate the valve, and common means for pivoting said lever to the casing and holding said cupshaped member in place.

2. A ball cock comprising a hollow casing open at its upper end, an apertured member therein, a valve for controlling said aperture, a cup-shaped,membermounted in and closing the upper end of the casing, said valve being provided with a stem extending upwardly through said cup-shaped member, a packing member surrounding the valve stem at an intermediate point within the casing, and means for supporting said packing member from the casing, said valve, valve stem, cup-shaped member and packing member being insertable and with-drawable as a unit from said casing.

3. A ball cock comprising a hollow casing open at its upper end, an apertured member therein, a valve for controlling said aperture,

i a cup-shaped member mounted in and closing the upper end of the casing, said valve being provided with a stem extending upwardly Y through said cup-shaped member, a packing member surrounding the valve stem at an intermediate point within the casing, means for supporting said packing member from the casing, a lever for actuating said valve stem, and common means for supporting said lever for actuation of said stem and securing said cup-shaped member in the casing.

4. A ball cock comprising a hollow casing open at its upper end, an apertured member therein, a valve for controlling said aperture, a cup-shaped member mounted in and closing the upper end of the casing, said valve being provided with a stem extending upwardly through said cup-shaped member, a packing member surrounding the valve stem at an intermediate'point within the casing, means for supporting said packing member from the casing, said valve, valve stem, cupshaped member and packing member being insertable and withdrawable as a unit from said casing, a lever for actuating said valve stem, and common means for supporting said lever for actuation of said stem and securing said cup-shaped memberin said casing.

5. A ball cock comprising a casing having a chamber therein, an inlet pipe communicating with said chamber, a valve within said chamber controlling the communication between it and the inlet pipe, a stem secured to said valve, a packing member surrounding the stem through which the stem moves, means for holding said packing member in place, a lever to operate the valve, and common means for pivoting said lever to the casing and holding said packing member holding means in place.

6. A ball cock comprising a casing having a chamber therein, an inlet pipe communicating with said chamber, a valve within said chamber controlling the communication between it and the inlet pipe, a stem secured to said valve, a packing member surrounding the stem through which the stem moves, a cup-shaped member telescopically received in the mouth of the casing and having its lower portion'bearing against the upper face of the packing, a valve operating lever extending into said cup-shaped member, and common meansV for pivotally supporting said lever and holding said cup-shaped member against movement out of said casing.

In witness whereof, I have hereunto set my hand this 8th day of May, 1930.

ABRAM N. PASMAN. 

